WRIGHT 



PLATE IX 



D 







-.:* - 



E 



" 





K 



G 



MATURE TADPOLES. X 1 



A. Rana catesbeiana, third season (2 years F. Rana palustris. 

 old). 



B. Rana catesbeiana, first season (3 to 5 



months old). H. Hyla versicolor. 



C. Rana catesbeiana, second season ( 1 year I. Hyla pickeringii. 



old). J. Rana sylvatica. 



D. Rana pipiens. 



G. Rana clamata, first season (3 to 6 months 

 old). 



E. Rana clamata, second season (1 year old). 



K. Bufo lentiginosus americarms. 



- 

 Suit -,- 



-,- 



d 



9 



& 



RELATIVE SIZES OF TRANSFORMED EXAMPLES. XI. 



a. Rana catesbeiana. e. Hyla versicolor. 



b. Rana clamata. /. Rana sylvatica. 



c. Rana palustris. ' g. Hyla pickeringii. 



d. Rana pipiens. h. Bufo lentiginosus americanus. 



